528 INVERTEBRATE MORPHOLOGY. 



Ovipositor non-retractile, without poison-gland (Terebrantid). 

 Ichneumon, Proctotrupes, Pteromalus, Microgaster, Cynips, 

 Selandria. 



15. Order Diptera. -Abdomen without cerci ; wings sometimes want- 

 ing, only the anterior pair ever present, posterior pair repre- 

 sented by halteres ; mouth-parts piercing and sucking ; meta- 

 morphosis complete. 



With wings. Culex, Tabanus, Musea. 



"Without wings. Pulex, Melophagus. 



LITERATURE. 



PROTRACHEATA. 



H. N. Moseley. On the Structure and Development of Peripatus capensis. 

 Philosophical Transactions Royal Society, London, CLXIV, 1874. 



F. M. Balfour. The Anatomy and Development of Peripatus capensis. Quar- 

 terly Journ. Microscop. Science, xxm, 1883. 



E. GaiFron. Beitriige zur Atiatomie und Histologie des Peripatus. Zoologische 



Beitrage, i, 1885. 



J. von Kennel. Entwicklungsgeschichte wn Peripatus Edwardsii und P. torqua- 

 tus. Arbeiten des Zool. Instituts Wiirzburg, vn, 1885 ; vm, 1886. 



A. Sedgwick. The Development of the Gape Species of Peripatus. Quarterly 

 Jouru. Microscop. Science, xxv-xxvin, 18^5-1888. 



A. Sedgwick. A Monograph of the Species and Distribution of the Genus Peri- 

 patus. Quarterly Journal of Microscop. Science, xxvui, 1888. 



MYRIAPODA. 



H. C. Wood. The Myriapoda of North America. Trans. American Philosoph. 



Soc., xm, 1865. 

 C. H. Bollman. The Myriapoda of North America. Bulletin U. S. National 



Museum, No. 46, 1893. 

 R. Lalzel. Die Myriapoden der osterreichisch-ungarischen Monarchic. Wien, 



1880-1884. 

 J. A. Ryder. The Structure, Affinities, and Species of Scolopendrella. Proc. 



Academy Nat. Sciences, Philadelphia, 1881. 

 J. Bode. Polyxenus lagurus, de Oeer. Ein Beltrag zur Anatomie, Morphologic 



und Entwicklitngsgeschichte der Chilognathen. Zeitschr. fiir d. gesammte 



Naturwisseusch., XLIX, 1877. 



vom Rath. Beitrage zur Kenntniss der Chilognathen. Bonn, 1886. 

 C. Herbst. Beitriige zur Kenntniss der CJdlopoden. Bibliotheca Zoologica, 



Heft ix, 1891. 



F. G. Heathcote. The Early Development of lulus terrestris. Quarterly Journ. 



Microsc. Science, xxvi, 1886. 



F. G. Heathcote. The Post-embryonic Development of lulus lerrestns. Philo- 

 sophical Trans. Royal Soc.. London, ci.xxix, 1888. 



